Roller head with endless belts for



Jan. 2, 1934. c. GEGAUFF 1,942,329

ROLLER HEAD WITH ENDLESS BELTS FOR SPINNING MACHINES Filed Nov. 28, 1932Patented Jan. 2, 1934 ROLLER HEAD WITH ENDLESS BELTS FOR SPINNINGMACHINES Charles Ggauff, Mulhouse, Haut-Rhin, France ApplicationNovember 28, 1932, Serial No. 644,731, and in France December 17, 1931 2Claims.

The present invention relates to improvements in roller heads withendless belts or sleeves, for machines used in the spinning of cotton,wool, schappe, artificial silk and other textile fibres.

A large number of roller heads with such belts have been used more orless successfully in spinning machines. They generally comprise onesingle driving roller for the endless belts or sleeves, supporting andfeeding the textile material, said driving roller being superposed by apressure roller to effect nipping of the textile material.

This type of roller head as all other roller heads having endless beltscannot deliver a regular product, that is to say free from swells andwaists,

unless the linear speed of the belt is exactly uniform. Experience hasshown that this condition is rarely fulfilled in practice owing tounequal stretching of the belts, their lack of homogeneity, particularlyat the joint, and so forth, so that a less regular product is oftenobtained by using a roller head with an endless belt than by using onewithout. for the belts, there is not ensured a positive andregularmovement for the belts such as it would be necessary forrealizing a regular and uniform product.

This inconvenience is completely eliminated by the roller head accordingto the present invention, Figures 1 and 2 of the drawing beingrespectively a sectional elevation and a plan of a twothread embodimentthereof.

The improved roller head comprises in addition to the feed system atwo-head guide roller llapped by two endless belts or sleeves 2, thesaid guide roller located inside the belts being driven by two outerfeed rollers 3, 4 positively driven with the same linear speed andbetween which it is pressed down by hooks 5 each pulled by a helicalspring 6 abutting between a fixed plane 7 and a nut 8 by which thepressure of the spring may be regulated, the whole forming an elasticloading device the Indeed, with one single driving roller constructionof which can however vary. This results in a very effective double driveof the endless belts or sleeves 2, which are gripped on both the outerrollers 3 and 4, thus ensuring an I? exactly uniform speed of the latterand in conse- W quence the production of a very uniform yarn. InFiguresl and 2 the plane or curved surface guiding the sleeves or belts2 is designated by 9, the floating cylinders by 10, 11, 12, 13, 14, 15and n 16, the slotted framework guiding the latter by 17, the tensioningrollers for the sleeves or belts by 18, the drawing rollers by 19, 20and the textile material by 21.

Each guide roller 1 being lapped by but two endless belts, thereplacement of such endless belts can be effected with great facility.The guide roller 1, the guide surface 9, the floating cylinders 10 to 16and the tensioning rollers 18 can be rapidly removed to free the sleevesor r belts 2; for this purpose it suffices to unscrew the nut 8 of eachloading hook 5.

What I claim is:-

1. In a roller head with endless belts or sleeves for spinning machines,the combination with the endless belts or sleeves of a guide rollerlocated inside thereof, two driving feed rollers outside the belts orsleeves, said guide roller being arranged between the two drivingrollers, and means for urging down said guide roller between the twodriving rollers to press the belts or sleeves against both said drivingrollers.

2. In a roller head with endless belts or sleeves for spinning machines,the combination with the endless belts or sleeves of two driving feedrollers and a guide roller therebetween for two endless belts orsleeves, arranged to press the latter against said feed rollers, aspring urged hook being removably connected to said guide roller and soarranged as to press the guide roller with the belts or sleeves againstsaid feed rollers.

CHARLES GEGAUFF.

